Fireproof door.



SAMUEL I. ROUKMORE, OF NEW YORK, N. Y.

FIFIEPROOF DOOR.

Specification of Letters Patent.

Patented Dec. 4, 1906.

Application filed March 29, i906A Serial Nit 3118.741.

To ad whom it 11i/(ty concern:

Be it known that I, SAMUEL I. RoeKMonn, ol- New York. in the county of Kings :incl Slate ot York, bane inw-nerd vermin new and useful linprovenuuh lu hirepi'ooi' Doors; and I do hereby declare the following to be n l'ull, fhnr. :tud txnf't flrs'rription of ilui invention, `sul'll :is will enable others skilled in the art to whit-hit zippi-ilaills lo make and use the salue.

This invention contemplates improving the construction ofY iireproof doors, having special refereure to the means for securing the panels to the rails and stiles and securing the rails and stiles to cach other. As heretofore constructed, these doors comprising a wooden core or liller, have been completely ineased with metallic sheathing, the rails and Stiles fitting over the edges o? the core and connected to one another and to the adjacent panels and rails by marginal lips each of which has been bent bach upon itself and into engagement with the adjacent lip to form a lap-joint. This is substantially the construction of the old and well-known Fire Underwriters door. Practice has demonstrated, especially in the manufacture of panels of ornamental design for interior construction where a. neat finish is essential, that considerable workmanship is required to insure seams of uniform thickness and evenness of surface where marginal lips or lapjoints are employed.

M v invention is designed, primarily, to simplify this construction and entirely obvialc the employment of marginal lips.

The invention will be hereinafter fully set forth, and particularly pointed out in the claims.

In the nrromimnying drawings, Figure l is :t perspective View with partsl broken away, i

showing :i door ronslrut'ttd in nei-ordenen with my invention. the parts being partially assembled. Onlv a single pont-l is shown, ns the ronneetion thereof to thi` rails` nud stiles would be merely repeated several times in a full-size door having several panels and inter mediate rails. Fig. 2 is :t fnee. View of a vom pleted construction. Figs. 3 and 4 are seotional views7 the former showing the flange as in Fig. l nud the latter showing the rontpleted forni.

lleferring to the drawings, l designates the sliles,n1\d the rails, whit-h with the puni-ls It rolnpletetv iurlose n wooden rorr or lillll' l. This silenth-tm'ered wooden mire is ilu' op proved construction, as it s well established that even under intense h. ,it such a door will umiiucin its integrity, .file n door of solid ontw., toll .is ironl ill op :ttul upon bend ing out oiV shape w ill disrlosr ilu* pnssztge. and admit the draft, thus defeating the essential purpose of lil'tproof doors und shutters.

'thv sheathing nvt-ordine lo mi' invention is se: uriil lo l he rails nud iii-s by n construetion ehhh is identit-:il throughout, :ind the formation of the sheathing on the Stiles is similar to that on thc rails, so that a single detail description of' one portion will suffire. The sheathing is shown in Fig. 3 carried about flush with the inner edge of the rail .Z. At a point in the wid th of the ruil, and referably near the inner edge thereof, the slieathing is formed with n. flange 5, which before the panel is inserted projects at right angles to the outer face of the rail, as shown also in Fig. 1. This flange is preferably forined by bending the sheathing outwardly, as at (l, then bach upon itsell tothe ruil, und then flat against the rail to the inner edge of the latter, forming an inner strip or shoulder The sheathing is secured by nails driven through the strip into the core. Unthe opposite face of the door this construction is repeated.

3 designates the enel of the sheathing, which, it will be understood, is also of metal and suitabl)Y stamped in panel design and duplicated on op osite sides of the door. These panels are s iown formed with extend ed flnt edges 9, so that the entire size of the panel is greater than the area inelosed b v the inner edges of the rails and stiles and about equal to that inelosed b r the llnnges 5. The panel is designed to be accomniodated within the llnnges and in contat-t with strips or shoulders T. A\l'ler it is in place each of the llantos i benl inwnrdli over the odge of the panel and hammered or pressed into the forni shown in big.

The engagement of the rnils willi the Stiles will be rendibV undersioi'id, is shown, the rails are in the saine positions relatively to the stilts as is the noel-#that is, the rails nre plan-.ed between tlie oppositt` [langes of the two sliles and when the flanges of the rails are benl down they are out of the way of the t [langes of the sliles. and these also may be l bent.

The advantages of my invention nre uppwreru. lt will be espermlli' noted that l :iin enabled lo enl|rel nviud Ibi` use of "lup- Twig n that term is ronnnonl)V used to designate those ennneetinns in \\'hieh eaeh part is l'nrined with marginal lips hielt are bent tu engage the adjaeenl lips.

'l`he advantages residing in a ennstrnetinn faces thereof l'nrniing shnnlders nn said rails and stiles within said flanges, and panels llavingr flat` straight edges designed tn be aeA ennilnndated between said flanges and in 5 embodying my inrenlinn are :hal less urliA enntaet with said shnnlders, said flanges benianship is invnlved, the panel edges being ing designed ln be bent wer Ille edges nl' said enl ireli' plain and straight. and the readiness panels with whieh the parts maybe assembled. ln 1 3. ln a lireprnnlI dmn having inelallie this ennneetinn it \\'ill be farther nnled that l sheathing eninprising' rails aw' stiles and Io the panel is securely held within the ehani panels, said rails and stiles being bent tn nels farmed by the flanges 5 and strips T4 forni nntwardly prnjeeting flanges, said ihere marginal lips have herelnl'nre been flanges being bent baek npnn themselves and dispensed willi, Ille seein-ing means. abile lhenee inwardlj` In l'nrln strips nr `llnlllders, nsnall) hnlding' the panA l as against ieinnval. said panels bai ing llal, straiglil idg. s ilen I5 has Veit permitted it tn ninve laterally nr signed tn enntaet with said strips nr shnnlshif't about. 'lhis is nbvinnsl)i undesirable ders Within said flanges and said flanges de and is avnided by ni dnstrllelinIL alien signedtn bebent niertheedgesnl'saitl panels the edges if the panel are in elnse ennlaet l, ln a lireprnnl' lnnr having nn-tallie willi the angles between si rips? and flanges fi. sheathing enniprising rails and sliles and zo fulaini asniyinventinns panels, said rails and stiles being benl ln l. ln a fireprnnl dnnr, a faire having rails fnrln nutwardly-projecting flanges, said and stiles and nietallie sheathing inelnsing flanges being benl baek npnn themselves and tha faces and nnter edges lherenl', flanges nn x thenee in\\'ardl tn tnrin .strips nr slinnlders, said sheathing within the width nf said rails i said panels having uniform straight edges de- 25 and stiles and prnjeeting nntwardt f'rnln the signed tn enntaet with said strips or shnnlA faces therenl", and panels having flat, straight ders within said flanges` and said flanges des edges designed to be aee innnndated between signed tn be bent nvertheedgesnl' said panels. said flanges, said Ilanges heilig designed tt be ln testinnin) whereof l have signed this bent over the edges nl said panels. speei'fieatinn in the presenee nl' twn snbserib- 3o 2. ln a fireprnnf" dma', a eure having rails ing witnesses.

and stiles and nietallfe sheathing inelnsing'i Sll'lli l, KOVKIUHIC. the laees and unter edges therenl", flanges en \Vitnesses: said sheathing within the width nl said rails (lnmlf'lnx l.. Melilli, and stiles and prnjeeling nnt\\ar ll' lrnni the Amen l). lilNn.

Rapp, 653,400, July 10, 1900,

'I 550,225, OCt. 25, LQO,

Ohmstr'and, 751,097, Feb) 2, 1904, 18S-3,3

mamar, 454,624, Dec. 1891, Iron sractaresatetal Sheatning, Smith, 755,585, "al". 22, 1904, frI'lClWS 

